fix: tighten internal semantic compose contracts

scripts/test-task13-runtime-fixtures.sh

@@ -19,6 +19,7 @@ TASK13_ROOT="$root"
 TASK13_TMP="$fixture"
 TASK13_RUN_ID="fixture-$profile"
 TASK13_PROJECT="thothii-task13-$profile"
+TASK13_PROFILE="$profile"
 TASK13_CORE_IMAGE="task13-core-$profile:fixture"
 TASK13_FRONTEND_IMAGE="task13-frontend-$profile:fixture"
 TASK13_SECRET_VALUE="task13-runtime-secret-$profile"
@@ -36,6 +37,7 @@ TASK13_PI_SETTINGS="$fixture/settings.json"
 TASK13_LLM_SERVER="$fixture/fake-llm.mjs"
 TASK13_LLM_CONTAINER="$TASK13_PROJECT-llm"
 TASK13_REMOTE="$fixture/remote.git"
+TASK13_CURRENT_IMAGE_OVERRIDE="$fixture/current-image.yaml"
 mkdir -p "$TASK13_REMOTE"
 
 workspace="$fixture/task13-smoke.yaml"
@@ -94,6 +96,7 @@ fi
 rendered="$fixture/rendered.json"
 docker compose --project-name "$TASK13_PROJECT" --project-directory "$root" \
   --env-file "$TASK13_ENV_FILE" "${compose_files[@]}" config --format json >"$rendered"
+task13_assert_rendered_contract
 tsx_loader="$root/backend/node_modules/tsx/dist/loader.mjs"
 checker=(node --import "$tsx_loader" "$root/scripts/task13-runtime-fixture-check.ts")
 [[ -f "$tsx_loader" ]] || {